Screening apparatus



Patented Ma r; 2|. 899.

0 W HONABACH scmzznma APPARATUS.

(Application filed Apr. 16, 1898.)

'(No Modal.)

UNITED STATES PATENT OFFICE.

CLARENCE WVALTER HONABACH, OF PARK PLACE, PENNSYLVANIA.

SCREENING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 621,568, dated March21, 1899.

Application filed April 16 1898. Serial No. 677,872. (No model.)

To all whom, it may concern:

Be it known that I, CLARENCE WALTER I-IONABAOH, a citizen of the UnitedStates, residing at Park Place, in the county of Schuylkill'and State ofPennsylvania, have invented a certain new and useful Improvement inScreening Apparatus, of which the following is a specification,reference being had to the accompanying. drawings.

This improvement relates to that class of screening apparatus in which areciprocating motion is employed; and the object of the invention is toprovide an apparatus of this class that will be not only rapid and easyin operation, but will be very durable and therefore not likely to getout of order. 7 v To these ends the invention consists in the peculiarconstruction hereinafter more particularlydescribedandthendefinitelyclaimed at the end hereof.

In the accompanying drawings, Figure 1 is a side view of a screenconstructed according to my improvement. Fig. 2 is a plan view of thesame, partly in section. Fig. 3 is a perspective view of the upper partof a.traveling block detached. Figs. 4 and 5 are perspective views ofdetails,-which will be more fully described hereinafter.

Referring now to the details of the drawings by numerals, 1 1 is theframe of any suitable form or material carrying two pairs ofpillow-blocks or pedestals 2 2, suitably secured to the frame. The upperpair carries the main shaft 3, on which is mounted the belt-pulley 4,and two face-plates or crankarms 5, each provided with a wrist-pin 6.The lower pillow-blocks carry a shaft 7, on which are mounted the levers8, each of which comprises a casting 9, having secured thereto twochannel-irons by bolts and nuts 11 or other fastening devices. Betweenthe upper ends of these channel-irons is set a block 12, which ispreferably bolted therein to prevent the upper ends of the channel-ironsspreading apart, which they would be otherwise apt to do under the laborthey have to perform. In the space between the block 12 and the casting9 a traveling block 13 is fitted, having bearings 14 for the wrist-pin6. This block is provided with lugs 15, embracing each edge of one ofthe angledrons, and on the opposite sides are set brasses 16 and 17.

- may be adjusted as they wear.

Between the brass 17 and the block are set adjustable wedges 18, bywhich the brasses On the opposite side of the wrist-pinare set brasses19, which are adjusted as they wear by an adjustable wedge 20, set onone side of one of thebrasses', as shown.

The screens 21 are set in pairs, the members of each pair beingconnected by short pieces of channel-iron 22, as shown. At the righthandends lugs 23 are riveted to the channeL irons, and chains 24 run fromone pair to the outside of the frame and from the other pair to theinside of the same, so that there will be no interference. In lieu ofchains rods or links may be employed, if preferred. At the other endthere are shafts 25, which pass through the channel-irons connecting thescreen at that end, and the ends of these shafts pass into boxes 26, setin a suitable aperture in the castings 9,'forming part of the levers 8-.Through these castings holes are formed at right angles to the shaft 25,and in these holes are set spiral springs 27, which bear against theboxes 26. These springs are secured in the holes by caps 28.

With the. above construction a reciprocating apparatus can be made thatwill be found not only durable, but easy to run, and as the wear of themoving block and the bearing therein can be taken up the poundingusually due to lost motion will be entirely avoided or reduced to aminimum, and, moreover, the springs 27 acting on the boxes 26 will havea great eflect in preventing the jar of the machine due to thereciprocating motion.

If preferred, both ends of the screens may be hung on levers and twoshafts and wristpins employed to give them motion.

What I claim as new is- 1. The combination in ascreening apparatus, of aframe therefor, a lever hung on said frame and having slots at rightangles to its length, recesses at opposite ends of the slots, a springin each recess, a block set between each pair of springs, screenspivotall'y connected to said blocks,and means for giving motion to saidlever, substantially as described.

2. The combination in a screening appara tus, of a frame, two pairs ofscreens working therein, each pair connected by irons 22 from whichproject pivots 25, transversely-slotted levers Bat each side havingboxes 26 in which In testimony whereof I affi'x my signature, saidpivots work, a fulcrum 7 for said levers in the presence of twoWitnesses, this 7th day IO arranged between the pairs of screens, a reofApril, 1898. volving shaft 3 mounted on the frame,wristpins 6 connectedto and turned by said shaft,

boxes 14 in which said pins 6 work and which Witnesses: travel in slotsin the levers, all substantially EDWARD REESE,

as described and shown. CHARLES R. FETTERMAN.

CLARENCE WALTER IIONABACII.

